Solving a Real World Assignment Problem with a Metaheuristic

  • Authors:
  • C. Privault;L. Herault

  • Affiliations:
  • LETI (CEA), DSYS, CEA-Grenoble, 17 rue des Martyrs, 38054 Grenoble Cedex 9, France;LETI (CEA), DSYS, CEA-Grenoble, 17 rue des Martyrs, 38054 Grenoble Cedex 9, France. laurent.herault@cea.fr

  • Venue:
  • Journal of Heuristics
  • Year:
  • 1998

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Abstract

This paper investigates a real world assignment problem, whichslightly differs from the classical generalized assignment problem(GAP). The large-scale number of variables in the related 0-1 linearprogram makes the use of commercial optimization packages impractical.We present here a metaheuristic using simulated annealing. It is basedon successive reductions of the search space by identification oflocally active constraints. Our approach employs a heuristicprocedure to compute an initial (feasible or infeasible) 0/1 solution,and a double-criterion acceptance rule. The performance of thealgorithm is demonstrated on real data sets.